Is someone who's hiv positive required to inform present or future sexual partners by law?

HIV: This may vary from state to state, but there have been criminal and civil cases in which the failure to notify has been evidence of a variety of criminal accusations, and the civil liabilities have resulted in very significant monetary rewards to the injured party. Morally it seems only natural to let people with whom you plan to be intimate know what their risks are. Wouldn't you want to know?